Yongjun Zhang
School of Civil Engineering, Qingdao Technological University, Qingdao, 266033, China
Guoying Wei
Institute of Gas Geology, Henan Polytechnic University, Jiaozuo, 454000, China
Zimin Zhang
Institute of Gas Geology, Henan Polytechnic University, Jiaozuo, 454000, China
Tianrang Jia
Institute of Gas Geology, Henan Polytechnic University, Jiaozuo, 454000, China
Dengfeng Yang
School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing, 100083, China
ABSTRACT
For coal seams susceptible to serious coal and gas outburst, numerous problems and issues, such as the low excavation speed and serious security risks, exist during the process of outburst prevention. Through on-site examinations, this study analyzes the effect of hydraulic slotting measures on changes in the coal-bearing assemblages and gas status and reveals the involved mechanisms that hydraulic slotting measures are applied to deal with coal and gas outburst. This study further proposes the rapid excavation technology with supporting equipment designed and integrated and establishes a comprehensive security system with hydraulic slotting as the core of the entire system. Therefore, the goals of achieving hydraulic slotting operated unattended to avoid personnel injury, implementing coal and gas control technology are achieved. The results of on-site examination indicate that the excavation speed using the proposed method could be two times faster than the excavation speed when boring and drilling method is applied and thus the goal of safely and efficiently carrying out excavation work in coal seams with severe coal and gas outburst potentials is realized.
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How to cite this article
Yongjun Zhang, Guoying Wei, Zimin Zhang, Tianrang Jia and Dengfeng Yang, 2013. Study of Hydraulic Slotting Technology for Rapid Excavation
of Coal Seams with Severe Coal and Gas Outburst Potentials. Journal of Applied Sciences, 13: 3483-3489.
DOI: 10.3923/jas.2013.3483.3489
URL: https://scialert.net/abstract/?doi=jas.2013.3483.3489
DOI: 10.3923/jas.2013.3483.3489
URL: https://scialert.net/abstract/?doi=jas.2013.3483.3489
REFERENCES
- Litwiniszyn, J., 1985. A model for the initiation of coal-gas outbursts. Int. J. Rock Mech. Mining Sci. Geomech. Abstr., 22: 39-46.
CrossRefDirect Link - Liu, J., Z.G. Liu and B.M. Shi, 2007. Study on the roadway excavation rapidly in the low permeability outburst coal seam. J. China Coal Soc., 32: 827-831.
Direct Link - Lu, J.Z. and J.Z. Liu, 2006. Present status and development of mine disaster prevention and control technology. Coal Sci. Technol., 34: 1-5.
Direct Link - Liu, M.J., L.A. Kong, F.C. Hao, X.P. Xin, G.Y. Wei and Y.W. Liu, 2005. Application of hydraulic flushing technology in severe outburst coal. J. China Coal Soc., 30: 451-454.
Direct Link - Wang, Z.F. and Q.C. Fang, 2007. Application of waterpower extruding method in driving coal roadway in out-bursting coal seam. Coal Mining Technol., 12: 73-75.
Direct Link - Wei, G.Y., Z.Y. Shan and Z.M. Zhang, 2008. Research on hydraulic slotting technology controlling coal- gas outbursts. J. Coal Sci. Engin. (China), 14: 67-72.
CrossRefDirect Link - Yu, Q.X., Y.P. Cheng, C.L. Jiang and S. Zhou, 2004. Principles and applications of exploitation of coal and pressure relief gas in thick and high-gas seams. J. China Univ. Mining Technol., 33: 127-131, (In Chinese).
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